If IBM made toasters ... They would want one big toaster where people bring bread to be submitted for overnight toasting. IBM would claim a worldwide market for five, maybe six toasters.

If Xerox made toasters ... You could toast one-sided or double-sided. Successive slices would get lighter and lighter. The toaster would jam your bread for you.

If Radio Shack made toasters ... The staff would sell you a toaster, but not know anything about it. Or you could buy all the parts to build your own toaster.

If Microsoft made toasters ... Every time you bought a loaf of bread, you would have to buy a toaster. You wouldn't have to take the toaster, but you'd still have to pay for it anyway. Toaster '98 would weigh 15,000 pounds (hence requiring a reinforced steel countertop), draw enough electricity to power a small city, take up 95% of the space in your kitchen, would claim to be the first toaster that lets you control how light or dark you want your toast to be, and would secretly interrogate your other appliances to find out who made them.
Everyone would hate Microsoft toasters, but nonetheless would buy them since most of the good bread only works in their toasters.

If Apple made toasters ... It would do everything the Microsoft toaster does, but 5 years earlier.

If Oracle made toasters ... They'd claim their toaster was compatible with all brands and styles of bread, but when you got it home you'd discover the Bagel Engine was still in development, the Croissant Extension was still three years away, and that indeed the whole appliance was just blowing smoke.

If Sun made toasters ... The toast would burn often, but you could get a really good cuppa Java.

Does Dec still make toasters? ... They made good toasters in the '80's didn't they?

If Hewlett-Packard made toasters ... They would market the Reverse Toaster, which takes in toast and gives you regular bread.

If Sony made toasters ... The ToastMan would be barely larger than the single piece of bread it is meant to toast, and can be conveniently attached to your belt.

If Timex made toasters ... They would be cheap and small quartz-crystal wrist toasters that take a licking and keep on toasting.

If Fisher Price made toasters ... 'Baby's First Toaster' would have a hand-crank that you turn to toast the bread that pops up like a Jack-in-the-Box.

If AOL made toasters ... You would put toast in for breakfast but have to wait until lunch as there are too many pieces of toast pending with the Host Toaster.